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Throughout the world, Τζακ (Jack , Τζακ, Seoc) is a widespread male first name. The given name Τζακ is characteristic of Macao, where it is a common male name, Ireland, and Hong Kong (explore the name in all countries). Measured by absolute frequency, it is commonest in the United States, the United Kingdom, and Indonesia. Very seldom, Τζακ is the last name as well as the forename.
Τζακ is also a prevalent name for the fictitious and mythical characters: Jack Bauer , the character from the television series 24; Jack Reacher , the fictional character, Jack Reacher; Captain Jack Sparrow , the fictional character and the protagonist of the Pirates of the Caribbean film series, Pirates of the Caribbean: On Stranger Tides; Jack Harkness , the fictional character of Doctor Who and Torchwood and Jack O'Neill , the fictional character from the Stargate universe, and in many other works.